Exploring the database of a soil environmental survey using a geo-self-organizing map: A pilot study
文献类型：期刊论文
| 作者 | Liao Xiaoyong1 ; Tao Huan1,2,3; Gong Xuegang1,3; Li You1,3
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| 刊名 | JOURNAL OF GEOGRAPHICAL SCIENCES
 |
| 出版日期 | 2019-10-01 |
| 卷号 | 29期号:10页码:1610-1624 |
| 关键词 | self-organizing map geo-information heavy metal soil environmental quality Hechi |
| ISSN号 | 1009-637X |
| DOI | 10.1007/s11442-019-1644-8 |
| 通讯作者 | Liao Xiaoyong(liaoxy@igsnrr.ac.cn) |
| 英文摘要 | A model integrating geo-information and self-organizing map (SOM) for exploring the database of soil environmental surveys was established. The dataset of 5 heavy metals (As, Cd, Cr, Hg, and Pb) was built by the regular grid sampling in Hechi, Guangxi Zhuang Autonomous Region in southern China. Auxiliary datasets were collected throughout the study area to help interpret the potential causes of pollution. The main findings are as follows: (1) Soil samples of 5 elements exhibited strong variation and high skewness. High pollution risk existed in the case study area, especially Hg and Cd. (2) As and Pb had a similar topo-logical distribution pattern, meaning they behaved similarly in the soil environment. Cr had behaviours in soil different from those of the other 4 elements. (3) From the U-matrix of SOM networks, 3 levels of SEQ were identified, and 11 high risk areas of soil heavy metal-contaminated were found throughout the study area, which were basically near rivers, factories, and ore zones. (4) The variations of contamination index (CI) followed the trend of construction land (1.353) > forestland (1.267) > cropland (1.175) > grassland (1.056), which suggest that decision makers should focus more on the problem of soil pollution surrounding industrial and mining enterprises and farmland. |
| WOS关键词 | ARTIFICIAL NEURAL-NETWORK ; HEAVY-METALS ; AGRICULTURAL SOILS ; QUALITY ; POLLUTION ; SEDIMENT ; MODEL ; CLASSIFICATION ; PREDICTION ; SUPPORT |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19040302] ; Key Research Program of the Chinese Academy of Sciences[KFZD-SW-111] |
| WOS研究方向 | Physical Geography |
| 语种 | 英语 |
| WOS记录号 | WOS:000484522800002 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; Key Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/69605]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liao Xiaoyong |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Beijing Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liao Xiaoyong,Tao Huan,Gong Xuegang,et al. Exploring the database of a soil environmental survey using a geo-self-organizing map: A pilot study[J]. JOURNAL OF GEOGRAPHICAL SCIENCES,2019,29(10):1610-1624. |
| APA | Liao Xiaoyong,Tao Huan,Gong Xuegang,&Li You.(2019).Exploring the database of a soil environmental survey using a geo-self-organizing map: A pilot study.JOURNAL OF GEOGRAPHICAL SCIENCES,29(10),1610-1624. |
| MLA | Liao Xiaoyong,et al."Exploring the database of a soil environmental survey using a geo-self-organizing map: A pilot study".JOURNAL OF GEOGRAPHICAL SCIENCES 29.10(2019):1610-1624. |
入库方式： OAI收割
来源：地理科学与资源研究所
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